Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSLEXUS2006RX 400H AWD V6-3.3L (3MZ-FE) HYBRIDREPAIR AND DIAGNOSISHYBRID DRIVE SYSTEMSTESTING AND INSPECTIONSCAN TOOL TESTING AND PROCEDURESHYBRID BATTERY SYSTEMACTIVE TEST
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) Hybrid
Active Test
2006 Lexus RX 400h AWD V6-3.3L (3MZ-FE) HybridSECTION Active Test
ACTIVE TEST
NOTE: Beware that if the connector to the intelligent tester becomes disconnected or if a communication error occurs during the ACTIVE TEST, the vehicle could become inoperative (the READY light goes off).
HINT: Performing an ACTIVE TEST using the hand-held tester enables components including the relay, VSV, and actuator, to be operated without removing any parts. Performing an ACTIVE TEST as the first step of troubleshooting is one method to shorten diagnostic time.
a. Connect the intelligent tester to the DLC3.
b. Turn the ignition switch to the ON position and turn the intelligent tester on.
c. Select the following menu items: DIAGNOSIS / OBD/MOBD / HV ECU / ACTIVE TEST.
NOTE: Beware that if the connector to the intelligent tester becomes disconnected or if a communication error occurs during the ACTIVE TEST, the vehicle could become inoperative (the READY light goes off).
HINT: Performing an ACTIVE TEST using the hand-held tester enables components including the relay, VSV, and actuator, to be operated without removing any parts. Performing an ACTIVE TEST as the first step of troubleshooting is one method to shorten diagnostic time.
Part 1:
Part 2:
a. Connect the intelligent tester to the DLC3.
b. Turn the ignition switch to the ON position and turn the intelligent tester on.
c. Select the following menu items: DIAGNOSIS / OBD/MOBD / HV ECU / ACTIVE TEST.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.